One idea for keeping the area around the mats might be to "rope off" the area within 15 feet of the mat or so, and keep everyone except the wrestlers that are up, and maybe the on deck and "in the hole" wrestlers, behind that rope.

Of course, this venue is so far superior to the old horse barn for viewing, and especially coaching, that I am having a hard time convincing myself that it is a problem. Rest assured, there will be improvements and I think Steve Foster did a great job of organizing the "first crack' at the new venue. My opinion is that Hartman arena is a perfect venue for this tourney, with a few very minor changes.
Doug